Control system for photographic document copying machines



Feb- 12, 1952 A. E. SCHUBERT ET AL 2,585,276

CONTRGL SYSTEM FOR PHQTOGRAPHC DOCUMENT COPYING MACHINES Filed Dec. 20, 1947 3 Sheets-Sheet l Feb- 12, 1952 A. E. SCHUBERT ETA. 2,585,276

CONTROL SYSTEM FOR PMOTOCRAPHTC DOCUMENT COPYING MACHINES Filed Dec. 20, 1947 3 Sheets-Sheet 2 Douai.: reto Feb- 12, 1952 A. E. SCHUBERT ETAL 2,585,276

CONTROL SYSTEM FOR PHOTOGRAPHC DOCUMENT COPYING MACHNES l5 Sheets-Sheet 3 Filed Dec. 20, 1947 m .T CC @Mmmm n mvo/56m /CUEN/,vm KVHF o pac w n amsn 4, #man wf 5mn@ ewa W Patented Feb. 12, 1952 UNITED STATES PATENT OFFICE CONTROL SYSTEM FOR PHOTOGRAPHIC DOCUMENT COPYING MACHINES Application December 20, 1947, Serial No. '792,880

28 Claims.

This invention relates to an apparatus for photographically copying documents and more particularly to an interlocking control arrangement for controlling the idle operating period, the auxiliary film Wind, and the document and film drive.

As is well known in document-copying machines in which only one side of the document is photographed or in a duplex type in which both sides of the document are photographed, if

ent time, however, to provide an automatic shutdown of the machine after a predetermined period of idle operation, that is, the interval between successive documents, and in a great many cases this interval may be of relatively long duration particularly in cases where the operator is called away from or leaves the machine while it is still running.

In the photographing of documents, it is the usual practice to wind off a xed amount of iilm before the camera is removed from the machine and after the camera has been replaced. This winding olf of the film protects' the last exposure against icgging or light leak and also insures an uniogged area of lm in the exposure position when the camera is replaced. The auxiliary film drive is usually controlled by the opening or closing of the cover after the machine has been stopped.

In the present invention, automatic shut-down of the machine is accomplished by a control unit A actuated by the film drive. After a predetermined interval, if no documents have been fed into the machine, it is automatically shut off. In order to start the machine, the control unit has to be returned or reset to its initial position. The control means is actuated by the document moving into the photographic station, and each successive document resets the control unit unless a period of approximately 90 seconds has elapsed between documents. This arrangement eliminates excessive wear on a lot of 'moving parts, and also provides for a reduced operating cost. The control for the auxiliary lm wind is also interlocked with the drive operating circuit whereby the opening or closing of the casing cover operates a switch for rendering the document and'lm drive inoperative or operative before and after the predetermined winding interval respectively. A plurality of normallyopen switches in series circuit with the drive operating circuit are also provided and are adapted to be closed by the proper positioning of the glass guides and mirrors. If any one of the glass guides or mirrors is replaced improperly after the removal for cleaning or replacement, the drive operating circuit will be inoperative. The above interlocking controls together with those controls already well known provide a control system which covers both machine failures and failures on the part of the operator due to oversightor carelessness.

The primary object of the invention, there fore, is to provide a document-copying machine in which the maintenance of a closed drive operating circuit is dependent upon successive feeding of documents into the machine, upon the cover remaining in the closed position, and the proper positioning of the glass guides and mirrors.

Another object of the invention is to provide a document-copying machine in which a control unit for the document and nlm drive will automatically shut down the machine after a predetermined interval has elapsed between succes sive documents.

A further object of the invention `is te provide a document-copying machine in which e. control unit for the document and nlm drive will shut down the machine `after a predetermined interval and which may be reset at any time before the predetermined interval has elapsed.

A still further object of the invention is to provide a document-copying machine in which a control unit for the document and film drive will shut down the machine after a predetermined interval and which may be reset by a document moving into the feeding station before the predetermined interval has elapsed and by a start bar adjacent the feeding station after the predetermined interval has elapsed.

Yet another object of the invention is to provide a document-copying machine in which a control unit for the document and film drive will shut down the film drive after a predetermined interval has elapsed between successive documents and which may be reset at any time during or after the predetermined interval by a document moving into the photography station or-by a start bar adjacent the feeding station, re'- spectively.

And another object of the invention is to provide a document-copying machine in which the document and film drive is rendered inoperative when the casing cover is moved to the open position andy rendered operative after a predetermined interval when the cover is moved to the closed position.

And still another object of the invention is to provide a document-copying machine in which the operation of the document and film drive and auxiliary film drive is controlled by a switch actuated by the movement of the casing cover to the open or closed position.

Yet another object of the invention is to provide a document-copying machine in which the operation of the document and film drive and auxiliary film drive is controlledby a cover actuated switch and actuating members associated with the auxiliary film drive for rendering the document and film drive inoperative or operative and the auxiliary film drive operative or inoperative when the cover is moved to the open or closed position, respectively.

A still further object of the invention is to provide a document-copying machine in which the drive operating circuit is maintained closed only when the glass guides and mirrors are properly positioned.

And still another object of the invention is to provide a document-copying machine in which a bodied in an apparatus for phctographically copying documents and in which a document is supported in and continuously moved through a photographic station in the casing which is provided with a cover movable to an open and a closed position. A drive means is provided for moving the document from the feeding station on the top of the casing to the photographing station where the document passes between a pair of glass guides. A camera, which supports the light-sensitive material in the exposure station.

is mounted on a hanger for locating the camera in optical relation to the photographing station. A mirror is positioned adjacent and. on each side of the photographing station and between the photographing station and exposure station for directing the refiected document images into the camera. A second drive means is operatively connected to the document drive means for moving the light-sensitive material in the camera in synchronism with the document. A control means is operatively connected to the second drive means for automatic shut-down of the machine after a predetermined interval has elapsed between successive documents inserted in the feeding station and is adapted to be reset at any time during orv after the predetermined interval. An actuating means operated by a document in the feeding station resets the control means before the predetermined interval has elapsed. The drive operating circuit, which includes a start switch, a reset solenoid and a motor, and the control circuit, which includes a solenoid and a holdingswitch, are controlled by the start switch for closing the circuits and resetting the control means after the predetermined interval has elapsed. A plurality of normally-open switches in series circuit with the operating circuit drive and control circuit maintain the circuits closed only when the glass guides and mirrors are properly positioned to close the switches. The auxiliary film drive comprises a motor connected through a gear train to the film take-up and film drive shafts in the camera and which is in series with a cover actuated switch and in series parallel with a normally-closed switch and one pole of a double-pole switch, the other pole of the double-pole switch being in se ries with the drive operating circuit and the control circuits. A second gear train connected to the first gear train has one gear thereof provided with spaced actuating members for engaging the normally-closed switch and the double pole switch. When the cover is moved to the open position, the auxiliary film drive is started and the document drive operating circuit and the control circuit are rendered inoperative. At the end of a predetermined interval= the auxiliary drive is also rendered inoperative. When the cover is moved to the closed position, the auxiliary drive is again rendered operative and, at the end of a predetermined interval, is rendered inoperative and the document drive operating circuit and the control circuit are then rendered operative. Y

Reference is now made to the accompanying drawings wherein similar reference characters designate similar parts and wherein:

Fig. 1 is a partial side elevation of a duplex copying machine, with the casing removed, and showing the arrangement of the parts for providing automatic shut-down 0f the machine;

Fig. 2 is a partial plan view showing the relation of the parts shown in Fig. 1;

Fig. 3 is a rear elevation, on a larger scale, of the actuating means shown in Fig. l;

Fig. 4 is a side elevation of the actuating mechanism shown in Fig. 3;

Fig. 5 is a front elevation of the feeding station on the top of the casing and showing the arrangement of parts for actuating the start switch;

Fig. 6 is a side elevation of the hanger for the camera and showing the arrangement of parts for driving the film tal-:e-up shaft, the film drive connections for the camera, and the switch actuating members;

Fig. 7 is a partial rear elevation of the camera hanger;

Fig. 8 is a partial view showing the arrangement whereby the auxiliary film drive is connected to and disconnected from the drive shaft;

Fig. 9 is a plan view of the casing in which all of the mechanism is housed;

Fig. 10 is a diagrammatic plan view showing the mirror arrangement, the glass guides. and the switches operated thereby;

Fig. 11 is a detail view of the actuating member contacted by the glass guides for closing the glass guide switch;

Fig. 12 is a detail perspective view of the coveractuated switch; and

Fig. 13 is a wiring diagram of the circuits involved in the present invention.

In the illustrated embodiment of the invention, the entire operating mechanism is mounted in the casing ID, see Fig. 9, which has a top wall Il which is divided into a number of sections one of which is the cover I2 which may be raised into an open position for inserting or removing the camera I3 and then lowered into a closed pographed, and as a result, the film has to be moved at an increased rate with respect to the movement of the document.

The control means for shutting down the document and film drive means comprises a support member 14, see Fig. 2, mounted on the frame 3tand having an extension terminating in a bearing portion 15 and an overhang 18. An arm 11 is pivotally secured at 18 to the overhang 16 and carries at the end thereof a drive roll 18. The roll 19 comprises a large cork-covered wheel 80 in frictional engagement with a reduced extension of the pulley 8! and a small Wheel 8| which is concentric with the wheel 80, both of said Wheels being free to move toward the shaft 58. A shaft 82 is journalled in the frame 30 and portion 15 and has xed thereto an arm 83 which carries a stub shaft 84 for a second cork-covered drive roll 85 which normally frictionally engages the small wheel 8| and is spring-biased towards said Wheel. The drive roll 85 carries a pin 86 around which one end of the coil spring 81 on the shaft 82 is wrapped. A second pin 88 is fixed to the arm 83 and secures the other end of the spring 81. Since the wheel 80 is in engagement with the extension on the pulley 8|, the wheels 80 and 8| will be rotated as a unit and will drive the wheel 85 at a constant speed irrespective of the pulley engaged by the member 51. As the Wheel 85 is rotated in a counterclockwise direction, the pins 88 and 83 are separated and the spring 81 is wound in tension. As the pin 88 and wheel 85 are rotated the pin finally reaches the point where it contacts the ann 89 of the switch 90 mounted on the overhang 16 to open the motor circuit to be described hereinafter. A bell crank lever 9| is xed to the shaft 92 and has one arm 92 thereof connected by the link 93 to the arm 94 of the lever 95 and the other arm 98 pivotally connected to the armature 01 of the solenoid 98.

The actuating means for resetting the control means comprises a plurality of document-actuated members IGG extending into the path of the document, as shown in Figs. 2 and 1, and which are secured to the rod pivotally mounted between theframemembers 30 bystuds|82. The rod IOI has xed to one end thereof a link |03 which has a lever |04 pivotally mounted at |05 thereto. A shaft |08A is journalled in a bearing member |01 pivotally mounted to the frame 30 by the stud |08 and carries a cam |09, a cork-covered drive member I I0, and the arresting means for holding the drive member I I0 against rotation. The cam |08 is adapted to be engaged by the follower roll III on the arm |I2 of the lever 95. The corkcovered drive roll I I8 is provided with a clearance portion IIS and when released begins to move due to spring I 25' until it frictionally engages the roll I I4 on the shaft 32 for driving the shaft |08.

The arresting means for holding the drive member ||0 against rotation comprises a pin H5 on the disc I I8 which abuts the recessed portion I I1 of the lever I |8 pivotally mounted on the frame 30 by means of the stud H5. The end of the lever I I8 is split and has a portion |20 formed to straddle the reduced portion |2| of the lever I 05. The lever |04 is held against the portion |20 by the spring |22, and the lever IIS is held against the pin by the spring |23. rlhe disc I I8 also carries a stud |24 to which is secured one end of a lever |25 having its other end connected to the counter |26. The bearing member |01 is ad justed by means of the stud |21 for varying the center distance and hence the clearance between the drive member I l0 and the roll I I4.

The means for resetting the control means comprises a start bar |30 mounted on the studs |3I secured to the under side of the plate I8 and a switch |32. The start bar |30 is free to move vertically on the studs |3| and is held adjacent the top wall |34 of the plate I8 by the springs |35. The aperture in the top wall |34 is sufficiently large to permit tilting of the bar |30 either to the right or to the left, as viewed in Figs. 1 or 5. This arrangement permits actuating the switch |32 by either tilting or depressing the bar |30. The switch |32 is mounted on the bracket |36 which is pivotally mounted on the plate I8 by means of the screw |31 and adjusted with respect to the bar |30 by the eccentric pin |38 and locked in position by the screw |39.

The auxiliary drive means provides for rotating the shaft 65 so as to wind film onto the takeup reel before the camera has been withdrawn from the casing I0, or after it has been replaced in the casing i0. It has been found that approximately eight (8) turns of the shaft 85 are necessary to wind off a sufficient amount of film to remove the film that has been fogged in loading the camera and to protect the last exposure prior to removal of the camera from the casing I0. In the present invention, the motor |40 is mounted on the shelf |4| of the hanger 86 and carries a worm |42 which engages the worm wheel |43 freely mounted on the shaft 55. The worm wheel |43 has pinned thereto a pinion |44 which meshes with the gear |45 freely mounted on the stub shaft |46. The gear |45 has fixed thereto a pinion |41 which meshes with the gear |48 on the shaft |49, said gear |48 having actuating members |50 and I5| on opposite sides thereof and diametrically located for engaging the arms of the double-pole switch |52 and normally-closed switch |53, respectively. The gear |54 is fixed to the shaft 85 and meshes with the gear |55 to drive the shaft |58 which operatively connects to the take-up reel shaft of the camera. In normal operation, that is, While documents are being' photographed, the document moves the fingers |00 which actuate a switch for energizing the I magnetic clutch 84 to drive the shaft 85 which in turn drives the plate |51 and the eccentric pin |58 thereon. The pin |58 engages the film drive roll in the camera for moving the film, and the tongue |59 on the shaft |56 engages the film takeup shaft and is driven by the gears |54 and |55. When the auxiliary drive means is operated, the shaft is stationary, as will be more fully disclosed hereinafter; however, in order to rotate the shafts 85 and |56, the worm-wheel |43 is provided with a plate on which is pivotally mounted a paWl |5| having a nose |82 for en gaging the ratchet |83 formed integral with the gear |54, see Fig. 8. As the worm-wheel |43 is rotated the nose |82 picks up the ratchet |63 and rotates the gear |54, shaft 65 and through gear |55 the shaft |58. In normal operation, as the ratchet |83 rotates with the shaft 65, the pawl is pivoted out of the way as the ratchet teeth strike the nose |82.

It will be noted, from Fig. 10, that the mirrors, 48, 41, and 48 have a switch |85, |88, and |81 thereunder respectively. These normallyopen switches are closed when each mirror is properly positioned. The glass guides must also be properly positioned to close the normally-open switch |88. In order to insure that both of the glass guides are in position, a switch actuating member |89 is provided with a. pivoted member |10 having an engaging portion I 1| for each glass guide. It is only when both glass guides are positioned properly ythat themember |69 is moved against the spring |12 to close the switch |68. The mirrors 46, 41, and 48 are also provided with severed corners which cooperate with protuberances on the mounting plate to prevent their ybeing mounted with the back face for- Ward.

The wiring diagram shown in Fig. 12 shows the relation of the various circuits as the machine photographs both sides of the document with the cover l in the closed position. The cover |0 actuates the double-pole cover switch |13 upon being moved to the open or closed position. The auxiliary drive circuit includes the cover switch |13, one pole of the double-pole switch |52, the normally-closed switch |53, and the motor |40. The normally-closed switch |53 and one pole of `the switch |52 yare in seriesparallel circuit with the switch |13 and the motor |40. The document drive circuit comprises the other pole of the switch |52, the motor 25, the start switch |32, and the solenoid 98. The control circuit comprises a ynormallyclosed stop switch |14, the switch 90, a solenoid |15, and the normally-open holding switch |16. It will be noted that the switches |65, |66, |61, and |68 are in series circuit with the film drive circuit and the control circuit. In order to indicate to the operator whether both or only one side ofthe document is `being photographed, an indicating circuit is provided which includes the transformer |11, a double-pole switch |18, a lamp |19 for indicating when both sides of the document are being photographed and a lamp |80 in parallel with the lamp |19 and for indicating that only one side ofr the document is being photographed. The switch is normally in the position indicated by the full lines in Fig. 12 and moved to the dotted line position by the sleeve |0| on the rod 61 which is moved when the camera for photographing only one side of the document is positioned on the hanger 66.

The operation of the above-described mechanism in conjunction with the electrical circuits will nowbe described. If it is assumed that the machine had been stopped with the parts in the positions as shown in the various iigures of the drawings, the operation is as follows: The operator depresses or tilts the start bar |30 thereby moving the switch |32 to the dotted Yline posi.- tionshown in Fig. 13 to energize the motor 25, and the solenoid |15 for holding switch |16 in the dotted line or closed position. The current now is then through the line |85 to the switch |13. through the lines |86 and |81, through the switches |74 and 90 and the solenoid |15 to the line |88, through the switch |16 to the line |60, and through switches |65, |66, |51, and |68 to the line |00. for maintaining the motor energized. The drive operating circuit when the bar is act ated is through the line |05 to the switch |13, the line |86 and |01 to the motor 25 and the line |9i, through the line |88 to the switch |32, through the line |92 to the line |89, and through the switches |65, |66, |61, and |68 to the line |90. At the instant the bar |30 is released, the drive operating circuit through the switch |16 remains closed as long as the solenoid |15 ren mains energized. At this point it can be readily appreciated that if for any reason one of the mirrors 46, 41, and 48 or the glass guides 2| have not been positioned properly, the control circuit and the drive operating circuit will not function. .fili

This circuit is the control circuit Withthe motor 25 energized rolls 3| are rotatedfthrough the belt 26 and the chain 31, and the lower rolls 38- are rotated through the chain 40., At the same time and since the clutch member 51 is engaged with the hub 58 of the pulley 59, the shaft 56 is rotated through the belts 62 and 53, and the pulley 6| is freely rotated on the shaft 56 by the belt 63. At the instant the pulley 6| commences to rotate, the motion is translated to the roll 8| and thence to the roll 85. As the roll rotates, the pin 06 moves away from the pin 88 in a counterclockwise direction, thereby tensioning the spring 81. If a document is now inserted in the feeding station I4, it is directed toward the rolls 3| and 34 and then picked up by said rolls for moving it toward the photographing station 20. Before entering the photography station, the document strikes the actuating members |00, which arein the path of the document, to rcate the rod |0| and the link |63 in a clockwise direction, see Fig. 4. Movement of the link |03 moves the lever |04 and the lever ||8 about its stud H9 so that the recess ||1 releases the pin H5, the lever |04 being hooked to the lever H8 by the shoulder formed by the reduced portion |2| engaging the formedportion |20 of the lever ||8 and held thereagainst by the spring |22. The spring |25' which is under tension imparts a starting motion to the shaft |06 through the disk ||6 so that the clearance portion ||3 of the roll ||0 is rotated a vslight amount to permit the periphery of the roll H0 to frictionally engage the roll |4 on the shaft 32. The disk Hs and the pin H5 are then rotated through one revolution. The rotation of the disc ||6 is limited to one revolution due tothe pin ||5 striking the lever |04 to release it from the lever I8 and permitting the lever IB to be brought back against the pin |20' where the recess i1 will be in the path of the pin H5 to arrest it as it is rotated with the disk ||6. Since the lever |04 is pivotally mountedvnn the link |03, the pin I5 striking the lever |04 has no effect on the member |00 which may be still held out of its normal position by the document. The lever |0|| is returned to its engaging position with the lever I8 onli7 after the document has released the member |00. 1 y

.As the shaft |06 is rotated, the cam |09 is rotated therewith to the follower and rotate the lever 9.5 in a clockwise direction. This motion is i.u'inf/trtedA by the link 93 to rotate the lever 9i andthe shaft@ the same direction. As the is rotated the arm 83 is also rotated to remove the roll 85 from engagement with the wheel 02 thereby permitting the spring 01 to return the pin 85 against the pin 88. At

. the, completion of the one revolution of the shaft |05, the roll 25 is again in contact with the wheel 8| the pin 05 again moves away from the nin 89,.' i.

If for any the operator fails to insert a document into the feeding station i4, thepin con 'nues to move away from the pin 88 until .it contacts the i!!! to open the switch 90. when the lswitch 50 is opened., the solenoid |15 isdeenergized permitting the switch |16 to open nder the control circuit and drive operat- 'circuit inoperative. The time required for the pin it to move from engagement with the pin $.35 to engagement with the *arm 80 of the switch liis the predeterminedfinterval of idle operation. This period, which is approximately Secondsinlength, is sufficiently long .so that even a document somewhat larger Athan a legalsize document may be entirely photographed, and the next document inserted without any danger of the machine being automatically shut down. To restart the machine, it is only necessary to press or tilt the start bar which closes the control circuit and drive operating circuit and also energizes the solenoid 98. As the solenoid is energized, the armature 31 is moved downward and through the arm 96 of the lever 8| rotates the shaft 82 and the arm 83 to remove the roll 85 from engagement with the wheel 8| to permit the spring 81 to return the pin 86 against the pin 88. When the pin 86 is released from the switch 90, it returns to its normallyclosed position and the circuits are again operative. It for any reason it is desired to stop the machine while it is in normal operation, the switch |14 need only be opened momentarily by depressing the stop button |14 on the panel |5.

As in the case when the switch 90 is opened by y the pin 85, the start bar |30 must again be actuated to start the machine. The above-described arrangements render the machine inoperative if a predetermined interval elapses between successive documents and permits reseti ting of the mechanism controlling the length of the interval at any time during or after the predetermined interval.

When the cover |2 is raised to the Open position, the switch |13 moves to the dotted line position, as shown in Fig. 13, to initiate the auxiliary nlm drive circuit and to render the control circuit and drive operating circuit inoperative. The auxiliary drive circuit is then through the line |35 to the switch |13, through the dotted line position of switch |13 to the line |93 and the switch |53 and to line |94, and through the line |94 to the motor |40 and the line |90. When the motor is energized, the worm |42 drives the worm-wheel pawl |6| and ratchet |63 rotates the shaft 65 and the shaft |56, as described above, to drive the lm roll and take-up shaft. The pinion |44 which rotates with the worm-wheel |43 rotates the gear |45, the pinion |41, and the gear |48. As the gear |48 1s rotated, the switch-actuating member |50 allows the switch |52 to move to the dotted line position, as shown in Fig. 13. The predetermined interval of operation is determined by the time required for the actuating members |50 and 5| to exchange relative positions, depending on the position of the cover |2, which is closed when the parts are in the position shown in Fig. 6. This movement of either member through 180 requires approximately 90 seconds and when translated through the gear train |48, |41, |45, and |44 results in eight (8) revolutions of the shaft G5 to provide the predetermined length of iilm which is wound off. The switches |52 and |53 are located adjacent each side of the gear |48, and the members |50 and |5| are on opposite sides of the gears |48, as shown in Fig. 1. The gear |48 is rotated until the member |5| engages the switch |53, thereby opening said switch and rendering the auxiliary drive circuit inoperative. At this point, the camera may be removed from its position on the hanger 68 for reloading or inspection with the last exposure protected against fogging.

When the desired camera is replaced on the hanger 66, the cover |2 may be closed immediately, and as the cover is moved to its closed position, the switch |13 is moved back to the full-line position, as shown in Fig. 13. The aux- |43 and through the 12 iliary drive circuit is then through the line |85 to the switch |13, through the full-line position of the switch |13 and the line |86 to the switch |52, through the dotted line position of the switch |52 to the line |94 and the motor |40, and from the motor through the line |90. Since the switch |52 is in the dotted-line position, the drive operating circuit and control circuits are inoperative and actuation of the start bar |30 will not start the machine. As the motor |40 starts to drive the respective gear trains, the member |5| is moved out of engagement with the switch |53 to permit it to return to its fullline position. The shafts 65 and |56 are rotated in the same manner as described above until the actuating member |50 again engages the switch |5|. When the member |50 engages the switch |5|, the switch is moved to its full-line position thereby rendering the auxiliary drive circuit inoperative and the drive operating circuit and control circuit operative. The iilm that may possibly have been fogged in loading the camera has now been wound out of the exposure aperture of the camera and the machine may be started by actuating the start bar |30.

As explained in the above-mentioned application Serial No. 750,832, one camera is used for photographing both sides of the document and a second camera is used for photographing only one side of the document. When the second camera is placed on the hanger 66, the rod 51 is moved to pivot the yoke 68 and move the clutch member 51 into engagement with the hub 60 of the pulley 6| to drive the shaft 56 at an increased rate and in synchronism with the document. y

In order to indicate to the operator which camera is in position on the hanger 58, a transformer |11 is connected across the lines |81 and l'l, see Fig. 13, to provide a reduced voltage for an indicating circuit. The indicating circuit comprises a double-pole switch |18 and the lamps |19 and |80 which are in parallel. The switch |13 is normally in the full-line position, as indicated in Fig. 13, for normally maintaining the current iiow through the lamp |19 to indicate at |13 on the panel I5 that both sides o the document are being photographed-` As the rod E1 is moved when the second camera is positioned on the hanger 66, the sleeve |8| engages the switch |18 to move it to the dottedline position for completing the circuit through the lamp to indicate at |80 on the panel |5 that only one side of the document is being photographed.

While the above-described invention has been described as being adapted to a duplex type of machine in which the document image is reflected twice before entering the exposure station, it may very well be incorporated in a duplex machine where only one reflection of the document takes place, or in a drum-type of photographing machine in which only one side of a document is photographed. With the latter two types, the only difference will be in the number of mirror-actuated switches, but in either case a switch can still be employed which is adapted to be closed by the proper positioning of the glass guides. Also, since other modiiications of the construction shown are possible, the scope of the invention is not to be limited to the illustrated embodiment but is defined by the appended claims.

We claim:

1. In an apparatus for photographically copying documents, the combination with a casing having a cover movable to an open and a closed position, a feeding station for the document, a photographing station in said casing for ti; document including document guide members, a drive means ier moving the document from said feeding station past said guide members, an exposurel station, reiiecting means adjacent said photographing station for directing the reflected document images into said exposure station, a camera adapted to support a light-sensitive material in said exposure station, and a second drive means operatively connected to said iirstmentioned drive means for moving said lightsensitive material in synchronism with the document, of a control means operatively connected to and movable by said second drive means from an inoperative position to an operative position for automatic shut-down of said drive means after a predetermined interval has elapsed between documents inserted in said feeding station, an actuating means operated by a document moving into said photographing station and operatively connected to said control means forr resetting said control means to said inoperative position before the predetermined interval has elapsed, a drive operating circuit including a start switch, a reset solenoid, and a motor, a control circuit including a holding solenoid and a holding switch, said holding solenoid and said reset solenoid being energized by the closing of said start switch vto respectively close said holding switch to maintain said drive operating circuit closed and to reset said control means to said inoperative position after the predetermined interval has elapsed, an auxiliary drive means operatively connected to said camera and adapted to move a predetermined length of said material past said exposure station, an auxiliary drive circuit including a motor, a normallyclosed switch and one pole of a double-pole switch in series-parallel circuit with said motor, a cover switch connected through the other pole of said double-pole switch to said drive operating circuit and said control circuit, connected to said auxiliary drive circuit and adapted upon movement of said cover to the open or closed position to close said auxiliary drive circuit for moving said material, and means associated with said Aauxiliary drive means and adapted when the tion to permit said normally-closed switch to I close and to close said one pole of said doublepole switch at the end of said predetermined length of material to render said auxiliary drive circuit inoperative and to render said drive operating circuit and said control circuit operative.

2. In an apparatus for photographically copying a document, the combination with a feeding station for the document, photographing station for the document, drive means for moving thel document from said feeding station past said photographing station, an exposure station adapted to support a light-sensitive material, and a second drive means operatively connected to said inst-mentioned drive means for moving at any time before the expiration of said interval,` and an actuating means operated by a document moving into said photographing station and operatively connected to said control means for resetting control means to said inoperative position before the predetermined interval has elapsed.

In an apparatus for photograph-ically copying a document, the combination with a i'eed-v station for the document, a photographing station for the document, drive means for moving the document from said. feeding station past said photographing station, an exposure station adapted to support a light-sensitive material, and a second drive means operatively connected to said inst-mentioned drive means for moving light-sensitive material in synchronism` h the document, oi a control means operatively connected to and movable by saidr second 've means from an inoperative position to an operative position only when said second drive4 int-:ans is inoperative to move said light-sensitiT material for automatic shut-down of said drive means after a predetermined. interval has elapsed and adapted to be reset to said inoperative position, and means adjacent said feeding station and operatively connected to said control means for resetting said control means to said inoperative position after the predetermined interval has elapsed'.

Il. In an apparatus for photographically copying a document, the combination with a feeding station for the document, a photographing station :for the document, drive means for moving the document from said feeding station past said photographing station, an. exposure station` adapted to support a light-sensitive material, and second drive means operatively connected to first-mentioned drive means for moving said light-sensitive material in synchronism with the document, of a control means operatively connected to and movable by said second drive means from an inoperative position to an operative siticn only when said second drive means is inoperative to move said light-sensitive material lfor automatic shut-down of said drive means after a predetermined interval and adapted to be reset to said inoperative position, an actuating means operated. by a document moving into said photographing station for resetting saidk control means to said inoperative position before the predetermined interval has elapsed, a'ndmeans adjacent feeding station 'and operatively connected to said control means for resetting control means to said inoperative position after the predetermined interval has elapsed.

5, In an apparatus for photographically copying a document, the combination with a feeding station for the document, a photographing station for the document, drive means for moving the document from said feeding station past said photographing station, an exposure station adapted to support a light-sensitive material, and a second drive means operatively connected to said first-mentioned drive means for moving said light-sensitive material in synchronism Wththe document, of a control means adapted to be reset and including a support member, a drive roll in engagement with said second drive means and pivotally mounted on said support member, a second drive roll normally in engagement with said first drive roll and pivotally mounted on said support member, and a switch means mounted on said support member and adapted after a predetermined interval to be actuated to automatically shut down said drive means, a switch-actuating means associated with said second drive roll and adapted to be rotated from a normal position to a switch-actuating position for providing a predetermined interval of operation, an actuating means operated by a document moving into said photographing station and operatively connected to said control means for disengaging said second drive roll from said first drive roll before said predetermined interval has elapsed, and means associated with said second drive roll and switchactuating means for returning said switch-actuating means to its normal position when said ond drive roll is in the disengaged position.

6. In an apparatus for photcgraphicaliy copying a document, the combination with a feeding station for the document, a photographing station for the document, drive means for moving the document from said feeding station past said photographing station, an exposure station adapted to support a light-sensitive material, and a second drive means operatively connected to said first-mentioned drive means for moving light-sensitive material in synclnonism with the document, of a control means adapted to be reset including a support member, a drive 1ll in frictional engagement with said second d e means and pivotally mounted on said support n* nber, a second drive roll normally in frictional engagement with said iirst drive roll pivotaiiy mounted on said support member, and a` switch means mounted on said support member and adapted after a predetermined interval to be actuated to automatically shut down said drive means, a switch-actuating means associated with said second drive roll and adapted to be rotated from a normal position to a switch-actuating position for providing a predetermined interval of operation and adapted to be reset at any time, a reset means operatively connected to said second secfdrive roll for removing said second drive roll from frictional enga-gement with said iirst drive roll, and an actuating means operated by a document moving into said photographing station and operatively connected to reset means for removing said second drive roll from engagement with said rst drive roll before said predetermined interval has elapsed.

7. In an apparatus for photographically copying a document, the combination with afeeding station for the document, a photographing station for the document, drive means for moving the document from said feeding station past said photographing station, an exposure station adapted to support a light-sensitive material, and a second drive means operatively connected to said first-mentioned drive means for moving said light-sensitive material in synchronism with the document, of a control means adapted to be reset including a support member, a drive roll in frictional engagement with said second drive means and pivotaliy mounted on said support member, a second drive roll normally in frictional engagement with said rst drive roll and pivotally mounted on said support member, and a switch means mounted on said support member eratively connected to said reset means for refil moving said second drive roll from engagement with said first drive roll before said predetermined interval has elapsed, means adjacent said feeding station and operatively connected to said reset means for disengaging said second drive roll from said iirst drive roll after the predetermined interval of operation has elapsed, and means associated with said second drive roll for returning said switch-actuating means to its normal position when said second drive roll is disengaged from said first drive roll.

8. In an apparatus for photographically copying a document, the combination with a feeding station for the document, a photographing station for the document, drive means for moving the document from said feeding station past said photographing station, an exposure station adapted to support a light-sensitive material, and a second drive means operatively connected to said first-mentioned drive means for moving said iight-sensitive material in synchronism with the document, of a control means adapted to be reset including a support member, a drive roll in frictional engagement with said second drive means and pivotally mounted on said support member, a second drive roll normally in frictional engagement with said first drive roll and pivotally mounted on Said support member, and a switch means mounted on said support member and adapted after a predetermined interval to be actuated to automatically shut down said drive means, a switch-actuating means associated with said second drive roll and adapted to be moved from a normal position to a switch-actuating position for providing a predetermined interval of operation between successive documents and adapted to be reset at any time, a reset means operatively connected to said second drive roll for removing said second drive roll from frictional engagement with said first drive roll, an actuating means operated by a document moving into said photographing station and operatively connected to said reset means for removing said second drive roll from engagement with said first drive roll before said predetermined interval has elapsed, and means including an actuating bar adjacent said feeding station, a second switch adapted to be closed by actuation of said bar, and a solenoid operatively connected to said reset means and energized by rthe closing of said second switch for disengaging said second drive roll from said rst drive roll only after said predetermined interval has elapsed to permit said switch-actuating means to be returned to its normal position.

9. In an apparatus for photographically copying a document, the combination with a. feeding station for the document, a photographing station for the document, drive means for moving the document from said feeding station past said photographing station, an exposure station adapted to support a light-sensitive material, and

asecond drive means operatively connected to said rst-mentioned drive means for moving said light-sensitive material in synchronism with the document, of a control means operatively connected to said second drive means for automatic shut-down of said drive means after a predetermined interval and adapted to be reset, an actuating means including a cam member and a follower associated therewith operatively connected to said control means for resetting said control means, a drive member engaging said drive means for rotating saidcam member, an arresting means for holding said drive member against rotation, and means operatively connected to said arresting means and actuated by a document moving into said photographic station for releasing said arresting means to permit said drive member and cam member to make a complete revolution for resetting said control means.

10. In an apparatus for photographically copying a document, the combination with a feeding station for the document, a photographing station for the document, drive means for moving the document from said feeding station past said photographing station, an exposure station adapted to support a light-sensitive material, and a second drive means operatively rconnected to said irst-mentioned drive means for moving said lign-taser ve material in synchronism with the document, ci a control means operatively connected to said second drive means for automatic shutdernL of drive means after a rpredeter- 1 adapted to be reset at any or after the predetermined interval. g means including a cam member vand a follower associated therewith operatively connected to said control means for .resetting said control means, a drive member normally spaced from said drive means and adapted to frictionally engage said drive means for rotating said cam member, an arresting means for holding said drive member in the normally spaced position, and means operatively connected to said arresting means and actuated by a document moving into said photographic station for releasingsaid arresting means to permit said drive member to move said cam member through a complete revo lution for resetting said control means before the predetermined interval has elapsed. f

11. In an apparatus for photographlcallycopying a document, the combination with a feedingl station for the document, a photographing sta-- tion for the document, drive means for moving the document from said feeding station` past said photographing station, an exposure station adapted to support a light-sensitive material, and a second drive means operatively connected to said mst-mentioned drive means `for moving said light-sensitive material in synchronism With the document, of a control means adapted tobe reset including a support member, a drive roll in engagement with said second'drive means vvand pivotally mounted on said support member, a second drive roll normally in engagement with said iirst drive roll and pivotally mounted on said support member, and a switchV means mounted on said support member and adapted after a predetermined interval to be actuated to automatically shut down said drive means, a switch-actuating means associated with said second drive roll and adapted to be rotated from a normal position to a switch-actuating position .for providing a predetermined interval of operation, an actuating meansincluding ya cam member and .a

follower associated therewith operatively connected to said control means for resetting `said control means, a drive member vengaging said drive means for rotating said cam member, an arrestingmeans for holding said drive member against rotation, means operatively connected to said arrestingmeans and actuated by a document moving into said photographing station for `releasing said arresting means to permit said drive member 'and cam member to make a complete revolution for disengaging said second drive roll from said first drive roll to reset said control means before the predetermined interval has elapsed, and 'means associated with said 'second drive roll for returning said switch-actuating means to its normal position when 'said second drive roll is in the disengaged position.

12. In an apparatus for photographically copying a document, the combination with a 'feeding station -for the document, a photographing station for the document, drive means for moving the document from said feeding station past said photographing station, an exposure station adapted to support light-sensitive material, and a second drive means operatively connected to said first-mentioned drive means for moving said light-sensitive `material in synchronism with the document, of a control means adapted to be reset including a support member, a drive roll in frictional engagement with said second drive means and pivotally mounted on said support member, a second drive roll normally in frictional engagement with said first drive roll and pivotally mountedon said support member, and a switch means mounted on said support member and adaptedafter'a predetermined interval to be actuated to vautomatically shut down said drive means, a switch-actuating means associated with said second drive roll and adapted to be rotated from a normal position to a switch-actuating position `forproviding a predetermined interval 'of operation .and adapted to be reset at any time. reset means operatively connected to said second driveroll for removing saidsecond drive roll from frictional engagement with said first drive roll, actuating :means including a cam'member and a follower associated therewith operatively connected Yto -saidreset means .for 'disengaging said second drive roll from saidiirst vdrive roll, adrive member vengaging ysaid .drive imeans for yrotating said `cam member, anarresting means for holding said ,drive member against rotation, and means operatively connected to `said arresting means and actuated by a document moving into said photographing station for releasing said arresting means to permit said drive member and cam member to make a complete revolution for disengaging said `second drive roll'from said first drive roll to permitsaid `switch-actuating means to'return to its normal position.

13. rInan apparatus -for photographically copying a document, the combination with a feeding station for vtlie'c'iocum'ent, a photographing station for Vthe document, drive means for moving the document from said feeding station past said photographing station, an exposure station adapted to support a light-sensitive material, and a second drive `means operatively connected to said mst-mentioned Vdrive means for moving said light-sensitive material in synchronism with the document, of a control means adapted'to bereset including a support'member, a drive rollin frictional engagement with said second drive means and pivotally mounted on said support member', a second drive roll in frictional engagement with said first drive roll and pivotally mounted on said support member, and a switch means mounted on said support member and adapted after a predetermined interval has elapsed between successive documents, to be actuated to automatically shut down said drive means, a switch-actuating means associated with said second drive roll and adapted to be rotated from a normal position to a switch-actuating position for providing a predetermined interval of operation and to be reset at any time during or after the predetermined interval, reset means operatively connected to said second drive roll for removing said second drive roll from frictonal engagement with said lst drive roll, actuating means including a cam member and a follower associated therewith operatively connected to said reset means for disengaging said second drive roll from said first drive roll, a drive member normally spaced from said drive means and adapted to frictionally engage said drive means for rotating said cam member, an arresting means for holding said drive member against rotation and in the normally spaced position, means operatively7 connected to said arresting means and actuated by a document moving into said photographing station for releasing said arresting means to permit said drive member and cam member to make a complete revolution for transmitting through said follower to said reset means the movement necessary to disengage said second drive roll from said first drive roll to permit said switch actuating means to return to its normal position before the predetermined interval has elapsed, means associated with said second drive roll for returning said switch-actuating means to its normal position when said second drive roll is in a disengaged position, and means adjacent said feeding station operatively connected to said reset means for disengaging said second drive roll from said first drive roll after the predetermined interval of operation has elapsed to permit said switch-actuating means to return to its normal position.

14. In an apparatus for photographically copying a document, the combination with a feeding station for the document, a photographing station for the document, drive means for moving the document from said feeding station past said photographing station, an exposure station adapted to support a light-sensitive material, and a second drive means operatively connected to said first-mentioned drive means for moving said light-sensitive material in synchronism with the document, of a control means adapted to be reset including a support member, a drive roll in frictional engagement with said second drive means and pivotally mounted on said support member, a second drive roll in frictional engagement with said first drive roll and pivotally mounted on said support member, and a switch means mounted on said support member and adapted after a predetermined interval has elapsed between successive documents to be actuated to automatically shut down said drive means, a switch-actuating means associated with said second drive roll and adapted to be rotated from a normal position to a switch-actuating position for` providing a predetermined interval of operation and to be reset at any time during or after the predetermined interval, reset means operatively connected to said second drive roll for removing said second drive roll from frictional engagement with said first drive roll, actuating means including a cam 20 member and a follower associated therewith operatively connected to said resetl means for disengaging said second drive roll from said first drive roll, a drive member normally spaced from said drive means and adapted to frictionally engage said drive means for rotating said cam member, an arresting means for holding said drive member against rotation and in the normally spaced position, means operatively connected to said arrest- 1 ing means and actuated by a document moving into said photographing station for releasing said arresting means to permit said drive member and cam member to make a complete revolution for transmitting through said follower` to said reset means the movement necessary to disengage said second drive roll from said first drive roll to permit said switch-actuating means to return to its normal position before the predetermined interval has elapsed, and means including an actuating bar adjacent said feeding station, a second switch adapted to be closed by actuation of said bar, and a solenoid operatively connected to said reset means and energized by the closing of said second switch for disengaging said second drive roll from said first drive roll only after said predetermined interval has elapsed to permit said switchactuating means to be returned to its normal position.

15. In an apparatus for photographically copying a document, the combination with a feeding station for the document, a photographing station for the document, drive means for moving the document from said feeding station past said photographing station, an exposure station adapted to support a light-sensitive material, and a second drive means operatively connected to said first-mentioned drive means for moving said light-sensitive material in synchronism with the document, of a control means operatively connected to said second drive means for automatic shut-down of said drive means after a predetermined interval and adapted to be reset, an actuating means including a cam member and a follower associated therewith operatively connected to said control means for resetting said control means before the predetermined interval has elapsed, a drive member engaging said drive means for rotating said cam member, an arresting means for holding said drive member against rotation, means operatively connected to said arresting means and actuated by a document moving into said photographing station for releasing said arresting means to permit said drive member and cam member to make a complete revolution for resetting said control means before the predetermined interval has elapsed, and means adjacent said feeding station and operatively connected to control means for resetting said control means after the predetermined interval has elapsed.

16. In an apparatus for photographically copying a document, the combination with a feeding station for the document, a photographing station for the document, drive means for moving the document from said feeding station past said photographing station, an exposure station adapted to support a light-sensitive material, and a second drive means operatively connected to said first-mentioned drive means for moving said light-sensitive material in synchronism with the document, of a control means operatively connected to said second drive means for automatic shut-down of said drive means after a predetermined interval has elapsed between successive documents and adapted to be reset at any time;

member agains,J rotation in the normaliy' spaced position, means operatively connected to said arresting means and actuated a document moving intcsaid photographing station for releasing said arresting means to permit sati drive member and cam member to maire a complete revolution for transmitting through said follower saidcontrol means, and means inciu ating bar adjacent said iceding station, a swii. adapted to be closed upc the actuation of bar, and a solenoid oper vely connected te sai@M control inea-,ns and the predetermined interval has elapsed.

i7. In an apparatus photograiicaily copying documents, the combination v th a having a cover movable to an open er closca tion, a photographing station in cas' the document, a drive means for moving the door ment past said photographi g station, an posure station, a camera to slippenJ lightsensitive.iilm in said expos re f n, and a second drive means operative said first-mentioned drive inea: said film in synchronisni with the a drive operating circuit in a double-pole switch, an auxMiary drive inea operatively connected to said camera for movin a predetermined length oi iini past aperture, and auxiliary drive circuit inciuo motor operatively connected to said ausi. drive means, a normally-closed switch, an other pole or" double-pole switch 'n parallel circuit with said motor, a cover sa connected through one or said dou. pole switch to drive oper ing circuit connected to said auxiliary 1"' circuit normally maintaining' said. drive operating circuit operative and adapted upon movement said cov r to the open or closed position said auxiliary drive circuit operative, movable v -th ausi ary drive means to pro-- vide a predetermined intervai of operation for actuating norniaily-clcsed switch said double-pole switch and adapted when the cover is movedto the open position close sai"m other pole ci said double-pcie switch r said drive operating circuit inoperative l opening said normally closed switch ait-er sa-; predetermin d interval to render auxiliary drive circuit inoperative and when the cover is moved to the closed position to close said norniai'iy closed switch and to close said one pole of said' double-pole switch after said predeterminec in terval to render said auxiliary drive circuit inop-m erative and to render said drive operating circuit operative.

' `l8. In an apparatus for photographically copy ingfdo'cuments, the combination with a casing having a cover movable to an open position, a photographing station in said casing for the docunient, a drive means for moving the document past the photographing station, an exposure sta tion, a camera adapted to support a light-sensiu tive yfilm in said exposure station, anda second drive means operatively connected to said firstcuit closed, an auxiliary drive means operatively connected to said camera and adapted to move said lm past said exposure aperture for a predetermined interval, an auxiliary drive circuit including a motor, a normally-closed switch and one pole ci a double-pole switch in series-parallei circuit with said motor, a cover switch connected through he other pole of said double-pole switch to said drive operating circuit and said control circuit, connected to said auxiliary drive circuit and adapted upon movement of said cover to the open position to close said auxiliary drive circuit for moving said .dini for a predetermined interval, and means associated with said auxiliary drive means for closing said other pole of said doublepole switch in said auxiliary drive circuit to render said drive operating circuit and said control circuit inoperative and for opening said normaliyclcsed switch after said predetermined in'erval to render said auxiliary drive circuit inoperative.

19. in an apparatus for photographically oopying documents, the combination with a casing having a cover movable to a closed position, a pl'iotographing station in said casing for the document, a `drive means for moving the document past the photographing station, an exposure station, a camera adapted to support a light-sensi tive film in said exposure station, and a second drive means operatively connected to said rstmentioned drive means and for moving said lm in synchronism with the document, of a drive operating circuit including a start switch and a- LIL:

motor, a control circuit including a solenoid and a holding switch, said solenoid being energized by the closing of said start switch to close said holding switch to maintain said drive operating circuit closed, an auxiliary drive means operatively connected to said camera and adapted to move said lilm past said exposure aperture for a predetermined interval, an auxiliary drive circuit including a motor, a normally-open switch and one pole of a double-pole switch in series-parailel circuit with said motor, a cover switch connected through the other pcie of said double-pole switch to said drive operating circuit and said control circuit, connected to said auxiliary drive circuit and adapted upon movement of said cover to the closed position to close said auxiliary drive circuit ior moving said film ior a predetermined in` terval, and means associated with said auxiliary drive means for closing said normally-open switch and for closing said one pole of said double-pole switch after said predetermined interval to render said auxiliary drive circuit inoperative and to render said drive operating circuit and said control circuit operative.

2, an apparatus for photographically copying documents, the combination with a casing having a cover movable to an open or closed position, a photographing station in said casing for the document, a drive means for moving 'the document past the photographing station, an exposure station, a camera adapted to supporta light-sensitive film in said exposure station, and a second drivevmeans operatively connected to said first-mentioned drive means and for .moving said film in synohronism with the document, oa

drive operating circuit including a start switch and a motor, a control circuit including a solenoid and a holding switch said solenoid being energized by the closing of said start switch to close said holding switch to maintain said drive operating circuit closed, an auxiliary drive means operatively connected to said camera and adapted to move said nlm past said exposure aperture for a predetermined interval, an auxiliary drive circuit including a motor, a normally-closed switch and one pole of a double-pole switch in seriesparallel circuit with said motor, a cover switch connected through the other pole of said doublepole switch to said drive operating circuit and said control circuit, connected to said auxiliary drive circuit and adapted upon movement of said cover to the open or closed position to close said auxiliary drive circuit for moving said ilm for a predetermined interval, and means associated with said auxiliary drive means and adapted when the cover is moved to the open position to close said other pole of said double-pole switch in said auxiliaryv drive circuit to render said drive operating circuit and said control circuit inoperative and for opening said normally-closed switch after said predetermined interval to render said auxiliary drive circuit inoperative and when the cover is moved to the closed position to close said normally-closed switch and to close said one pole of said double-pole switch after said predetermined interval to render said auxiliary drive inoperative and to render said drive operating circuit and said control circuit operative.

2l. In an apparatus for photographically copying documents, the combination with a casing having a cover movable to an open position, a photographing station in said casing for the document, a drive means for moving the document past the photographing station, an exposure station, a camera adapted to support a light-sensitive film in said exposure station, and a second drive means operatively connected to said firstmentioned drive means and for moving said film in synchrcnism with the document, of a drive operating circuit including a start switch and a motor, a control circuit including a solenoid and a holding switch, said solenoid being energized by the closing of said start switch to close said holding switch to maintain said drive operating circuit closed, an auxiliary drive means operatively connected to said camera and adapted to move said film past said exposure aperture for a predetermined interval, an auxiliary drive circuit including a motor, a normally-closed switch and one pole of a double-pole switch in series-parallel circuit with said motor, a cover switch connected through the other pole of said double-pole switch to said drive operating circuit and said control circuit, connected to said auxiliary drive circuit and adapted upon movement of said cover to the open position to close said auxiliary drive circuit for moving said lm for a predetermined interval, and means including actuating members associated and movable with said auxiliary drive means, one of said actuating members being adapted to release said double-pole switch to close said other pole in said auxiliary drive circuit to render said drive operating circuit and control circuit inoperative and a second actuating memer being adapted to engage said normally-closed switch to render said auxiliary drive circuit inoperative.

22. In an apparatus for photographically copying documents, the combination with a casing having a cover movable to a closed position, a.

24 photographing station in said casing for the document, a drive means for moving the document past the photographing station, an exposure station, a camera adapted to support a light-sensitive film in said exposure station, and a second drive means operatively connected to said firstmentioned drive means and for moving said iilm in synchronism with the document, oi a drive operating circuit including a start switch and a motor, a control circuit including a solenoid and a holding switch, said solenoid being energized by the closing of said start switch to close said holding switch to maintain said drive operating circuit closed| an auxiliary drive means operatively connected to said camera and adapted to -move said iilm past said exposure aperture for a predetermined interval, an auxiliary drive circuit including a motor, a normally-open switch and one pole of a double-pole switch in seriesparallel circuit with said motor, a cover switch connected through the other pole of said doublepole switch to said drive operating circuit and said control circuit, connected to said auxiliary drive circuit and adapted upon movement of said cover to the closed position to close said auxiliary drive circuit for moving said film for a predetermined interval, and means including actuating members associated and movable with said auxiliary drive means, one of said actuating members being adapted to permit closing of said normallyopen switch and a second actuating member being adapted to engage said double-pole switch after said predetermined interval to close said one pole to render said auxiliary drive circuit inoperative and to render said drive operating circuit and said control circuit opeative.

23. In an apparatus for photographically copying documents, the combination with a casing having a cover movable to an open or closed position, a photographing station in said casing for the document, a drive means for moving the document past the photographing station, an exposure station, a camera adapted to support a lightsensitive film in said exposure station, and a second drive means operatively connected to said first-mentioned drive means and for moving said film in synchronism with the document, of a drive operating circuit including a start switch and a motor, a control circuit including a solenoid and a holding switch, said solenoid being energized by the closing of said start switch to close said holding switch to maintain said film drive circuit closed, an auxiliary drive means operatively connected to said camera and adapted to move said g lm past said exposure aperture for a predetermined interval, an auxiliary drive circuit including a motor, a. normally-closed switch and one pole of a double-pole switch in series-parallel circuit with said motor, a cover switch connected through the other pole of said double-pole switch to said drive operating circuit and said control circuit, connected to said auxiliary drive circuit and adapted upon movement of said cover to the open or closed position to close said auxiliary drive circuit for moving said film for a predetermined interval, and means including actuating members associated and movable with said auxiliary drive means, one of said actuating members -being adapted to release said double-pole switch to close said other pole in said auxiliary drive circuit to render said drive operating circuit and control circuit inoperative upon movement of said cover to the open position and a second actuating member being adapted to engage said normally closed switch to render said auxiliary drive `circuit inoperative at the end .of said .predetermined interval, .and .said second actuating'drnember being adapted to permit `closing of said normally-closed switch upon movement of said cover to a closed position and said first-mentioned actuating member being .adapted to engage said double-pole switch Vat the end of said vpredeter- `mined interval to close said one pole to render sition, a photographing station in said casing for the document, a drive means for .moving the document past the photographing station, an exposure station, a camera adapted to support a light-sensitive lm in said exposure station, and a second, tively vconnected to said first-mentioned drive means and for moving said iilm in synchronism with the document, of a drive operating circuit including a start switch and a motor, a control circuit including a solenoid and a holding switch, said solenoid being energized by the closing or said start switch to close said holding switch to maintain said drive operating circuit closed, an auxiliary drive means operatively connected to said camera and adapted to move said film past said exposure aperture 'for `a predetermined interval, an auxiliary drive circuit including a motor, a normally-closed switch and one pole of a double-pole switch in series-parallel circuit with said motor, a cover switch connected through the other pole of said double-pole switch to said drive operating circuit and said control circuit, connected to said auxiliary drive circuit and adapted upon movement of said cover to the open or closed positionto close said auxiliary drive circuit for moving said film for a predeterlmined interval, and an actuating drive means operatively connected to said lauxiliary drive means and including spaced switch-actuating l members to provide a predetermined interval of operation, one of said actuatingmembers being adapted to hold said normally-closed switch open when the cover is in the open position and the other actuating member being adapted to hold said one pole of said double-pole switch closed to maintain said drive operating circuit and said control circuit operative when said cover is in the closed position.

25. In an apparatus for photographically copying documents, the combination with a l.

having a cover movable to an open or closed pcsition, a photographing station in said casing for the document, a drive means for moving the document past the photographing station, an exposure station, a camera adapted to support light-sensitive lm in said exposure station, and a second drive means operatively connected to said first-mentioned drive means and for moving said film in synchronism with the document, of a drive operating circuit including a start switch and a motor, a control circuit including a solenoid and a holding switch, said solenoid being energized by the closing of said start switch to close said holding switch to maintain said drive operating circuit closed, an auxiliary drive means operatively connected to said camera and adapted to move said iilm past said exposure aperture for a predetermined interval, an auxiliary drive circuit including a motor, a normally-closed switch and one pole of a double-pole switch in seriesdrive means opera- Aparallelcircuit with said motor., a cover switch connected through the other pole of said doublepole switch to said drive operating circuit and said control circuit, connected to said auxiliary drive circuit and adapted upon movement of said cover to the open or closed position to close said auxiliary drive circuit for moving said iilm for a predetermined interval, and an actuating drive means operatively connected to said auxiliary drive means and including a gear having a switch-actuating member on each side thereof A and spaced diametrically from each other to 'pro- ,vide a predeterminedA interval of operation, one of said actuating members being adapted to hold said normally-closed switch open when the cover is in the open position and the other actuating member being adapted to hold said one pole of said double-pole switch closed to maintain said drive operating circuit and said control circuit operative when said cover is in the closed position.

26. In an apparatus for photographically Copying documents, the combination with a casing having a covermovable to an open or closed position, a photographing station in said casing for the document, a drive means for moving the document past the photographing station, an exposure station, a camera adapted to support a light-sensitive film in said exposure station, and a second drive means operatively connected to said first-mentioned drive means and for moving said film in synchronism with the document, of a drive operating circuit including a start switch and a motor, a control circuit including a solenoid and a holding switch, said solenoid being energized by the closing of said start switch to close said holding switch io maintain said drive operating circuit closed, an auxiliary drive means operatively connected to said camera and adapted to move said lm past said exposure aperture for a predetermined-interval, an auxiliary drive circuit includingV a motor, a normally closed switch and one pole of a double-pole ,switch in series-parallel circuit with said motor,

a cover switch connectedthrough the other pole of said double-pole switch to said drive operating circuit and said control circuit, connected to said auxiliary drive circuit and adapted upon movement of said cover to the open or closed position to close said auxiliary drive circuit for moving said film for a predetermined interval, and an actuating drive means operatively connected to said auxiliary drive means and including a gear having a switch-actuating member on each side thereof and spaced diametrically from each other to control the predetermined interval of operation upon movement of said cover to the open or closed position, one of said actuating members being moved to release said double-pole switch to close said other pole in said auxiliary drive circuit to render said drive operating circuit and said control circuit inoperative upon movement of said cover to the open position and said second actuating member being moved to a position for engaging said normally-closed switch to render said auxiliary drive circuit inoperative and said second actuating member being moved to permit closing of said normally closed switch upon movement of said cover to the closed position and said first-mentioned actuating member being moved to a position for engaging said double-pole switch to close said one pole to render said auxiliary drive circuit inoperative and to render said drive operating circuit and said control circuit operative.

27. An apparatus for photographlcally copying either both or only one side of a document and having a photographing station, an exposure station, a drive means for moving the document through said photographing station, a camera adapted to support a light-sensitive material in said exposure station and for photographing both sides of the document, a second camera adapted to support a light-sensitive material in said exposure station and for photographing only one side of the document, a hanger means for supporting either of said cameras in optical relation to said photographing station, an advancing means operatively connected to said drive means for normally moving said material at a synchronous rate with respect to the movement of the document and selectively at an increased synchronous rate with respect to the document, a control means operatively connected to said advancing means and adapted to be actuated by v said second camera when in position on said hanger means for selectively permitting said material to be moved at an increased synchronous rate with respect to the movement of the document, and means for normally indicating the photographing of both sides of the document and adapted by the actuation of said control means by said second camera to indicate the photographing of only one side of the document.

28. An apparatus for photographically copying either both or only one side of a document and having a photographing station, an exposure station, a drive means for moving the document through said photographing station, a camera adapted to support a light-sensitive material in said exposure station and for photographing both sides of the document, a second camera adapted to support a light-sensitive material in said exposure station and for photographing one side of the document, a hanger means for supporting either of said cameras in optical relation to said photographing station, an advancing means operatively connected to said drive means for normally moving said material at a synchronous rate with respect to the movement of the document and selectively at an increased synchro- 28 nous rate with respect to the document, a control means operatively connected to said advancing means and adapted to be actuated by said second camera when in position on said hanger means for selectively permitting said material to be moved at an increased synchronous rate with respect to the movement of the document, an indicating circuit including a double-pole switch, a lamp for indicating photographing of both sides of the document and a second lamp in parallel with said first lamp for indicating photographing of only one side of the document, one pole of said double-pole switch being in series with said first lamp and normally closed and the other pole of said double-pole switch being in series with said second lamp, and means adapted to engage said double-pole switch and movable with said control means when said second camera is positioned on said hanger means for closing said indicating circuit through said other pole for indicating photographing of only one side of the document.

LINCOLN ROCHESTER TRUST COMPANY, Executor of Roy S. Hopkins, Deceased, By JOHN W. REMINGTONy Vice-President. ALVIN E. SCHUBERT. JOHN F. EGAN.

REFERENCES CITED- The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,391,807 Swalm Sept. 27, 1921 1,966,348 Hughey July 10, 1934 1,993,178 Mitchell Mar. 5, 1935 2,161,391 Schubert June 6, 1939 2,391,274 Schubert Dec. 18, 1945 2,403,711 Egan July 9, 1946 2,419,836 Holbrook Apr. 29, 1947 2,452,497 Shutt Oct. 26, 1948 2,472,931 Yohn June 14, 1949 2,492,127 Hessert Dec. 20, 1949 

